Booker dumping-body



W. C. ANTHONY.

ROCKER DUMPING BODY.

APPUCKTION "LED APR-1,1913. 1,365,017. Patented Jan. 11, 1921.

fizvenfor ?7ZZza:m 6.

$74k m g i M W. C. ANTHONY. ROCKER numPms BODY.

APPLICATION HLED APR-1, IQIB- 4 5HEETS-SHEEI 2- W. C. ANTHONY.

ROCKER DUMPfNG BODY. APPLICATION mzu APR. I. 19:23.

Patented J81]. 11, 1921.

4 SHEETS-SHEET 3- I22 V6 73607"- 14 22252722 CflnL /wn W. C. ANTHONY.

ROCKER DUMPING BODY.

15211 222507 WZZZUYZ 65125245720739.

Patented Jan. 11, 1921.

4 SHEETS-SH! 4 WILLIAM C. ANTHONY OF STREATOR, ILLINOIS.

ROCKER DUMPING-IBODY.

Specification of Letters Patent.

Application filed April 1. 1918. Serial No. 226,092.

7 '0 all iii/mm it may concern:

Be it known that I, WILLIAM C. ANTHONY, a citizen of the United States, residing at Streator, in the county of La Salle and State I of Illinois, have invented a certain new and.

useful Improvement in Rocker Dumping- Bodies, of which the following is a specification.

My invention relates to improvements in dumping bodies lor trucks and wagons and has among its objects to provide a dumping body which will automatically move to the dumping position when the lock which holds it in the carrying position is released and will then return to the dumping position after the load has been discharged, though this arrangement may under certain circumstances be modified so that the return will not be complete but can be easily made by the hand of the operator with a minimum of effort. because under the same circumstances a complete return will be so sensitive that a slight inclination of the surface upon which the truck stands might cause unsatisfactory operation. Other objects are to provide an arrangement whereby the body is moved bodily to the rear as it rotales for dumping. thus making it possible to tip the bottom thereof more sharply and give it a sharper line of inclination thus insuring annore ready dumping of the contents. Other objects of my invention will appear from time to time in the specification.

My invention is illustrated more or less diagrammatically in the accompanying drawings. wherein Figure 1 shows a side elevation;

Fig. 2 is a detail of the rocker mechanism;

Fig. 3 is a section on line 33 of Fig. 2;

Fig. 4 is a section on the line 4-4 of Fig. 2;

Fig. 5 is a rear view;

Fig. 6 is a detail in part section of the stop and return spring apparatus;

Fig. 7 is a detail front view in part section of the mechanism shown in Fig. 6;

Fig. 8 is a detail side elevation of a. modified form of rocker mechanism;

Fig. 9 is a section on the line 9-9 of Fig. 8. *ig. 10 is a section on the line 10-10 of Fig. 8.

Fig. 11 is a. side elevation of the rear portion of a dumping wagon equipped with a power means, of restoring the body dumping.

Like parts are indicated by like characters in all the drawings.

A is a truck frame. It terminates immediately above the rear axle A The axle, of course, is provided with the usual type of drive wheels A I have broken away the forward end of the truck as it forms no part of my invention. A is the drive shaft leading from the motor or the source of power at the forward end of the truck to the drive axle. A is the operators or drivers seat.

I B are tracks located one on either side of the main truck frame. These tracks are supported on brackets ll B which extend outwardly from the frame so that the overall width between the tracks is greater than the width between. the frame members. Each of these tracks is substantially Z- shaped and carries bolted thereon a rack B The teeth of this rack do not extend up as far as the upper edge of the flange B so that the rack is shrouded. B B are cam supports adapted to rest upon and roll along the track. They are geared as at B and provided with flanges B adapted to overlie the outer wall of the track. These flanges ll" at their lower ends are enlarged as at B and slotted at l3. The slot B is adapted to engage the head It of a bolt B in the track It. The arrangement of slot and head is such that as the cam support rotates along after the track with the gear teeth thereon in mesh with tho teeth in the rack. the bolt head is disengaged from the slot in the flange and there is no interference but when the support rotates back into the position shown in full lines the bolt, head and slot are in engagement and so the support is held against movement away from the track in a vertical direction.

C is an open dump body mounted on the .cam supports and thus supported by what 1 have called a rocker mechanism comprising the cam supports, track and associated parts. This body has a rear end dumping door U adapted to 1 1e held closed by bolts C, which ed by the hand lever C to perout of the contents when the s. e inclined dumping position shown in dotted lines. C is a stirrup mounted immediately behind the drivers seat adapted to support and limit the down- Ward movement of the forward end of the Patented Jan. 11, 1.921..

truck body. This stirrup is braced as at (J and adapted to be en aged by latch C pi'voted on the front en ot' the body and manipulated by a hand lever C" which the o erator may control. C is adrum rotatab y mounted upon the stirrup C. Wound about it is a cable C which cable is anchored at one end on the drum, and at the other end to the dumping body. C". is a spring attached at one end to the drum, at the other end to the stirrup adapted to keep the cable always tight. (7 is a counter weight which tends to hold the lever C always in inoperative position as shown in Fig. 6. T his lever (J has a lug C" adapted when the lever is rotated away from the dumping body to disengage the latch C and )crmit the body itself to be released and all by gravity. C is a brake band surrounding a part of the drum C contrh'lled by the lever so that a further movement of the lever after the latch has been disengaged will tighten the brake band and enable the operator to control the speed with'which the cable passes out, thus controlling the variations of the dumping l'IlOVQIXlBIlt. This spring is compressed and after the body is dumped assists in pulling in on the cable to make sure that it winds up on the drum so as to be ready to check the body on the next dumping movement. This makes it possible to completely stop the movement of the body at any time, as for instance when it is desired to have the discharge comparatively gradual as in spreading gravel or crushed rock on a road and the like while the truck advances. The cable is of such length that it will be all paid out when the body is in the final dumping position. and thus no other limiting action is needed. However it will be observed that there is an abutment C at the extreme end of the rack B to keep the rocker from going too far.

In Figs. 8, 9 and 10 there is shown a slightly modified form.

L L are brackets extending outwardly from the vehicle frame. Supported on these brackets is a toothed rack or track L held in position upon the bracket by means of bolts L These bolts it will be observed have heads located within countersunk holes in t e track cut away so as not to interfere with the teeth. Between the brackets the track carries downwardly extending reinforcing channel members L, L", which give the track at the center a channel-shaped cross section. That part of the rack which carries the load is tapered or inclined into a V-shaped cross section as indicated in Figs. 9 and 10. Each tooth as at L is sharply inclined and the space between the teeth is cut away as at. L so that there are no pockets on the rack where dirt or dust or mud can gather.

M is a rocker rigidly mounted on and depending downwardly below the vehicle body. It hasa peripheral grooved flange M adapted to rest upon the track and of substantially the same shape so that it Ms the track. This rocker groove is toothed as at M and these teeth mesh with the tooth on the rack so that the rocker lits on the rack and there is no danger of running oil the track or slipping to one side or another. Dowmvardly depending from the outside of the rocker and flange M is an extension plate M reinforced by a rib as at M" and provided with a cam slot M adapted to cogage'a. lug M on the bracket I). This cam slot is so shaped that if the rocl c1"starts to.roll from its position shown in Fig. 8, the slot will be moved away from the lug 'without interference, but if an effort is made to raise the body of the vehicle up or down without rolling it-an effort which might result from going over a bump -this cam slot will engage the lug and hold the body rigidly in position.

it. will be noted that the surfaces on the track or rack which would otherwise tend to catch or hold dirt, mud and the like. are dowmvardly inclined and largely apertured. The inclined surface of the inner side of the flange on the rocker engaging this rack surface will, if it is covered with mud as it might be under certain circumstam-cs. squeeze a large part of the mud out through the holes in the rack, and the remainder will be gradually workcd down along the inclined surfaces and drop ofl' or be forced off so that the rack and rocker act as the cleaner. ']here is no danger of dirt and mud being picked up into the space between the teeth. making the device inopcra tive.

it will be noted that astbc body rotates in view of the fact that the center of gravity is way above the center of support or the line of support and in view of the fact that the supporting cam is way below the body. the whole body moves backward an appreciable distance. The result of this is that when the body is being dumpedit is inclined gradually and at the same time moved bodily backward so that the body may normally be much further forward on the truck frame and still be rotated far enough to give the desired inclination without bodil raising the body. It will be understood t at if the body. is to be dumped without the use of. some power means it must be merel rolled. and cannot be raised or lifted but or inarily when this is done the body can only rotate a short distance because it comes in contact with the frame and so the material does not flow freely out. In my arrangement the body is displaced by a rolling action and also tilted so that the body is moved far enough back to make it possible for it to til) clear the rear end of the frame and thus be sufficiently sharply inclined to effect the dumping movement.

In Fig. it I have shown a plunger reciprocatin in a hydraulic chamber and a piston whereby the operator may control bydraulic power from the engine or other suitable source to manipulate the body. This forn'is no part of my invention but merely indicates that under. certain circumstances it might be desirable to have such power means to return the body to the normal position in the event that it proved impossible under certain circumstances, to have a fully automatic return.

It will be evident that while I have shown in my drawings an operative device, still many changes might be made both in size, shape and arrangement of parts without departing: matcri; H from the spirit of my invention and I wish. therefore. that my invention be regarded in a sense diagrammatic.

The use and operation of my invention are as follows The body is supported by the curved rocker on the rack. The teeth are provided to make the operation more accurate. ()bviously they might be dispensed with as the teeth only prevent slippin The arrangement is such that the center of gravity of the body when it is loaded is behind the renter of support at the lower end of the rocker. When the latch is released the Weight of the body causes the body to rotate, and sinre the rocker is incliued'to the rear the body also moves toward the rear and comes to rest at its raised position at a steep angle of rest so that material can easily be discharged by gravity. 'hen the load is discharged from the body the center of gravity is nearer the bottom of the body. and in my preferred form of design. drops down so low that it falls forward of the center of support at the rear of the rocker. The result is the body automatically returns or tends to return toward the ldw position, depending on theorrangemcnt of parts and the inclination of the ground upon which the vehicle stands. The body may return clear to the carrying position or only part way. In the latter use a more touch from the operator will be suflirscnt to romplr-le the return. and the latch will h engaged and the body ready to do business again. It will be noted that this arran u-mcnt of the centers of gravity in relation to a traveling center of support is an exceedingly important feature of my invention because by it when the body is dumped, l get an automatic return of the body.

It will he understood that as the vehicle travels along the body is locked in place by two locks; one holds it against rotation. the other prevents it from being: lifted bodily away from the vehicle frame. hen the op orator releases the first lock the weight overbalances, the body rocks to the rear and dumps. As it rotates and rocks to the rear, the means for locking the body down on the truck are released, because this is only done when the truck is at. a standstill or work ing very slowly, and there is no need of holdi'ugthe body down on the vehicle frame. As soon as the vehicle is dumped, it swings back to the carrying position, engages the means for holding the body on the frame and also the latch for locking the body against rotation. The body is ready for the next excursion.

It will be understood that while I prefer to have the rolling rocker which carries the body on the vehicle frame lowered completely beneath the body. still under certain circumstances it might be preferable to have this rolling rocker along the body and not beneath it. This might somewhat modify the automatic operation. but any change would only be a change in degree up to the point where the center of gravity goes be low the center of support when you would have a case of stable equilibrium instead of unstable equilibrium. and you would no longer have a body which dumped automatically or tended to dump automatically. Anything short of that will differ from my particular preferred arrangement only as above indicated in degree.

In Fig. 11 I have shown more or less diagrammatically a. plot of the positions of the renter of gravity of the loaded body. It will 0 be noted that the center of gravity which I have marked falls to the left of the center of support which I have marked and that as the body rotates and is moved backward the center of gravity which I have marked always remains to the left of the center of support which I have marked .9. Now it will be understood that v, a are the centers of gravity of the loaded body and that when the body is unloaded the center of gravity c will move dow'u say to 0 because of course the maximum weight of the body is at the bottom, but it will be noted that 0 falls to the right of a and so of course the body re turns to the normal upright position, de pending on the design. may be at the right of s when the body is upright or it may not. Preferably I make it just to the left so that the operator by hand or otherwise is compelled to securely seat the body in its operatin g position. This is to give it a greater dumping movement when the body is full. as to move the center of gravity of the body itself over to the right of the center of support would decrease the dumping tendency, as it might neutralize or tend to neutralize the tilting effect caused by the load applied at the loaded center of gravity.

l claiin1 l. The combination with a vehicle and dumping body of a track on the vehicle frame, a I(illll1g1'fi(i(?f support on the body engagin the track, said track and support having ateraliy downwardly inclined suriafes to prevent deposition of foreign Illilterial.

2. The combination with a vehicle and dumping body of a track on the vehicle frame, a rolling rocker support on the body engaging the track, snitl truck and support having laterally alun'nmntliy inrlinell u! 21095 to prevent deposition of foreign Hilltzrial said track and support, lacing toothml. the: track lwing anoltumwl beneath the tooth to EH-ifiiit :lisohm'gv oi l'orvign material from beheon them. 1

3. The' combination with n which? of n thumping bod minptwl \vlwn in]; to rotate to dumping position. a hatch normally liohlizig tho dumping lJINlY in plant, unit lniugnn o: 1" -si12g tin: iatoh mid retarding Ehu doing h f the body said means comprising :1 nninioil lawn a latch-engaging lug thvrw on, n brain? band operated by the lever,

(ls-nan vonti uiletl thereby. and a yielding connovtion l)(l\\t"i1l the drum and tho dump hotly. J W

The voinhinution with avohii'lo of El Jumping body. .i'oii' 1g sn w-1 for the h tly. a ram hint in 1i roiiing support, a. min: mag-aging invmher on the whisky mid IlliPIiilHfi' and slot adapted to ho in engagement only when the (lumpin holly is in upi'ight position.

The comhination with a vchivlv of :1 dumping body. moans for simnltuntonsiy rottiliig the hotly to (hung) it. and moving it in'iiliifg with respui't to the vehicle, :1 mi moans or holding the body against vertical movenwm with respect to the vehicle. said na alm iiiiitptt'il. to hold the body in an upright p 7 aitioii. and to relezwe it when it rotated toward tlw (lumping position. comprising i1 Foot and n sto one on the oody and the otht-r on the vol the body i upright.

6. Tiw combination with a )ohioio of it inmpin body. means for sinn:ltnnoonsly 1'0- tating; tho body to dump it. and moving it iiole. adaptor] to Eilgiiigo when bodiiy with. respect to tho whiwlo. and means for holding the bull)" against v n'tii-al mow ment. with respeot to the vehicle. mid means adapted to hold the. body in an upright posi- Lion and to release it when it is rotated toward the ullnn nng position. comprislng a stop on the VPliHi, and slol on tho lmil) adapted to he moved into onizagonwni with t-nlly beyond Silili tooth.

8. A combination of :1 who)?! :jnni (inmo- 111;; body. :1. toothmlfirnulc on (in: whnfllv frame. a loothml Ioolur support on the body engaging: tho firm-k mni ran-km support prw i'iiiml with lam-ml ilnngvs vxivmi ng \llli willy hoyoml Hau tooth and vornpioioiy n-- lying the tooth on the trunk at tho point of con'tm-t lmtwovn the tl'zu'k zzlni support.

'3. A combination of o whit-lo and a [lumpili.,.'iioely n toothmi truck on tin vohiz'ln f riiuiig'. a toothed roclmr suppovl. on tho hotly tlljggglllg tintrue-li. said ltH'lU'l Hum. rt pm \itit'll with iulmnl flanges (xii-n l. if \w t'ivnll lii-ymnl Faiii tooth and romgrivia-ly wl-lying tho tooth on tho uni-la at the point oi vontzn-t lwIwu-n tho [rook :lthi support and a Stop ill tin onll oi" tlnlynch intvgrul ihm'ywith adapted to limit. tin rearward movpi'nont of mid ilulij'.

10. The mnnhinntion with n. Ytllh'ifl and lumping lroilv oi tl'2U'liS on tho whivlo l'rnmv. rolling roc-lu-r support. on tho hoaly un'gnglng [lav inn-k and lJiIWlU'tll) e-xtozniing finngrbs on tho lllhllli ol' Hiliil tr'm'lis :nnl elon'n itumlly i-xlvmiing llnngos on tho out hitlil olhsnhi roviu'r MIMHIHH.

ln tvtiniony nln-l'ooi. l allix my signatnw in tho 'n'osuiii'toi two \\itncs.- -n this i-lth (lay of ilan'h. HHS.

WiLLlffill (T. AN'K'EEHN Y \Vitm-ssos 

